I did try it, but it never quite worked. The app launched, and found the Sonos network and the speaker. But it didn’t appear as an AirPlay device to my phone. I could make it work in one context: iTunes (on the same Mac) could see it and use it as a functional output device.But that wasn’t much use, as the Sonos already has access to my iTunes library from where it’s backed up on the NAS — and also to Apple Music. So being able to play from iTunes to the Sonos brought nothing new.

The added functionality I was looking for was to be able to play podcasts from Overcast, and switch to the speaker when I’m listening in the kitchen. For that my iPhone or iPad needs to be able to see the speaker.

So it all didn’t look too promising. But I was just having another go, and I noticed that the version on the website is 1.0 (BETA 6.1), while I had BETA 4. A quick download and we’re up and running: it works!